Abstract:[Objective] To introduce the surgical technique and preliminary clinical results of the arthroscopic treatment of chronic locking anterior glenohumeral dislocation in the elderly. [Methods] From January 2016 to December 2020, 5 elderly patients received ar- throscopic treatment for chronic locking anterior glenohumeral dislocation. The scar tissue was removed arthroscopically and the normal gle- nohumeral alignment was recovered. Two anchors were placed in the middle of bone defect in the Hill-Sachs lesion. The bone defect area of the anteroinferior glenoid was exposed, and freshened with a curettage. A 2 cm×2 cm×1 cm bicortical bone block was harvest from the ili- um and trimmed according to the size and shape of the recipient area. After the anteroinferior approach was established, the bone block was placed on the anteroinferior edge of the glenoid, and fixed with two cannulated lag screws. Two to four anchors were inserted into the anteri- or margin of the glenoid at 1-7 o'clocks as needed, the anterior joint capsule and labrum were sutured. The sutures of the 2 posterior an- chors previously placed were tightened to fill the infraspinatus on the bone defect in the Hill-Sachs lesion, and if necessary, the torn rotator cuff was repaired in some cases. [Results] All 5 patients had arthroscopic procedures performed successfully without serious complications, and followed up for 9~18 months with a mean of (11.5±3.1) months. At last follow-up the range of motion of the shoulder, as well as ASES, Constant-Murley and Rowe scores were significantly improved compared with those preoperatively (P<0.05) . Up to the latest follow-up, no recurrence of glenohumeral instability and no revision surgery happened in anyone of them. The CT examination confirmed that the bone graft had healed on the anteroinferior glenoid with proper glenohumeral alignment. [Conclusion] This arthroscopic procedure epitomizes the advantages of arthroscopic technique, which does effectively restore the normal glenohumeral alignment, reconstruct the glenoid, repair anterior capsule and the Hill-Sachs lesion, and is an effective method for the treatment of chronic locking anterior glenohumeral dislocation in the elderly.